MSNBC Katy Tur Reports January 10, 2022 19:09:00
As omicron is taking over most of this country, no doubt you've been told to upgrade your mask. here with us is msnbc medical contributor and critical car -- critical care pulmonologist dr. vin gupta. doctor, i want to get down to what works and what doesn't. "the wall street journal" had a helpful grid that talked about masks. if you're out and you're going to go buy a mask, which one should you buy? >> katy, good afternoon, great to see you. i have demos here to help folks understand what we're now talking about. we're talking about a better mask. cloth masks we were talking about for the fi...